diff --git a/mps/test/conerr/4.c b/mps/test/conerr/4.c
index 38451258bdf..396b7655b1a 100644
--- a/mps/test/conerr/4.c
+++ b/mps/test/conerr/4.c
@@ -7,7 +7,7 @@ TEST_HEADER
 OUTPUT_SPEC
  assert = true
  assertfile P= global.c
- assertcond = RingLength(&arenaGlobals->poolRing) == 5
+ assertcond =~ RingLength\(&arenaGlobals->poolRing\) == \d+
 END_HEADER
 */